@Bob Bubeck posted:
My bad. I meant to write volume control. This is what my NH sound car is fitted with, too. Volume potentiometers and sliding switches that Lionel often use can become intermitant and physical activation of these components is all that is needed to restore operation.
Good grief. That post is from a half decade ago.
Bob, good info never dies. I read a lot of the older threads through searches. I bought a UP sound car used but it was DOA and I returned it today. I still think this was a great idea but it had poor quality control apparently.